We have answered in response to the many questions.
Some suggestions will to be reflected in the next update.
And this is a summary for you who don’t know the answer yet.

1. HOW TO CHANGE THE BRUSH SIZE?
Pinch to zoom, then you can use a small size of brush. Touch two fingers, to move around.

2. WHY THE RESULT IS NOT JUST LOOK LIKE THE SAMPLE?
This is not a photo filter. It’s a tool, converter to pixelate a image.
Please read the description on the product page on this site and ‘How to’ have posted on the blog. You can get how to use it.

3. HOW TO CHANGE THE PIXEL SIZE?
While you search the face, at the ‘Auto (Face) Detect’ step, you can change the pixel size. You can choose the position of the pixel using green eye mark. Next step, we try to draw a pixel at that position and give you pixels just pixel artist choose. It’s very complex choice. You have to choose more than 10 options from begin, but people don’t want to do. So we made a simple and easy method using green mark on the eye.

4. MOSAIC? LIKE OTHER PHOTO EDITING APP?
No, not at all. We have already posted an article on the blog. This is not a mosaic. And you can find the difference on the result. We use only 8-15 color.

5. WHY SHOULD I DRAW A MASK MORE THAN THE OBJECT?
Because hide the edge!!! Some pixels are placed inside the object, but some pixels are placed on the edge. So we need more informations including the background. We do a pixel work, do not a smoothing work. Please check the ‘How to’ post on the blog we already described.